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90
MCP live MCP 2025-11-25 streamable-http ext: ui

Crosswire — Polymarket & Kalshi Arbitrage

com.crosswire-api/crosswire-polymarket-kalshi-arbitrage

Cross-venue Polymarket+Kalshi arbitrage: resolution mismatch, void risk & settlement divergence.

Watch this dependency Share evidence report
Uptime
100.0%
5 direct probes · 30d
Response
902ms
last probe
Tools
2
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://api.crosswire-api.com/mcp
Score: 90/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
2 tools, 0 resources, 0 prompts returned.
partial 3 or more catalogue items 0/10
2 items in total; 3 or more earns these points.
How to earn +10 points
Expose at least three tools, resources or prompts
Split a catch-all tool into focused ones, or publish your docs and templates as resources and prompts.
Docs →
pass Describes itself 10/10
96 characters; more than 30 earns these points.

Tools · 2

check_resolution_risk

Pre-trade safety check for cross-venue event markets (crypto oracle-divergence pairs, metered; World Cup football, free). Flags resolution mismatches, void-rule divergence, scope differences (e.g. 90-…

list_covered_events

Free discovery of everything check_resolution_risk can audit across both inventories — the free World Cup football pairs and the metered crypto oracle-divergence pairs (the 'crypto:' namespace is the …

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://api.crosswire-api.com/mcp

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "crosswire_\u2014_polymarket_\u0026_kalshi_arbitrage": {
      "url": "https://api.crosswire-api.com/mcp",
      "transport": "streamable-http"
    }
  }
}